Vulnerability Details CVE-2023-1999
There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.3%
CVSS Severity
CVSS v3 Score 5.3
References
Products affected by CVE-2023-1999
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cpe:2.3:a:webmproject:libwebp:0.4.2
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cpe:2.3:a:webmproject:libwebp:0.4.3
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cpe:2.3:a:webmproject:libwebp:0.4.4
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cpe:2.3:a:webmproject:libwebp:0.5.0
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cpe:2.3:a:webmproject:libwebp:0.5.1
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cpe:2.3:a:webmproject:libwebp:0.5.2
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cpe:2.3:a:webmproject:libwebp:0.6.0
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cpe:2.3:a:webmproject:libwebp:0.6.1
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cpe:2.3:a:webmproject:libwebp:1.0.0
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cpe:2.3:a:webmproject:libwebp:1.0.1
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cpe:2.3:a:webmproject:libwebp:1.0.2
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cpe:2.3:a:webmproject:libwebp:1.0.3
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cpe:2.3:a:webmproject:libwebp:1.1.0
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cpe:2.3:a:webmproject:libwebp:1.2.0
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cpe:2.3:a:webmproject:libwebp:1.2.1
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cpe:2.3:a:webmproject:libwebp:1.2.2
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cpe:2.3:a:webmproject:libwebp:1.2.3
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cpe:2.3:a:webmproject:libwebp:1.2.4
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cpe:2.3:a:webmproject:libwebp:1.3.0